6455000

素因数分解:

$2^3\times 5^4\times {\mathrm{1291}}^1$

素因数の和:1317

約数の個数: 40

約数和(自身を含む): 15135780

約数和(自身を除く): 8680780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 1291, 2500, 2582, 5000, 5164, 6455, 10328, 12910, 25820, 32275, 51640, 64550, 129100, 161375, 258200, 322750, 645500, 806875, 1291000, 1613750, 3227500, 6455000]

約数ペア:

[(1, 6455000), (2, 3227500), (4, 1613750), (5, 1291000), (8, 806875), (10, 645500), (20, 322750), (25, 258200), (40, 161375), (50, 129100), (100, 64550), (125, 51640), (200, 32275), (250, 25820), (500, 12910), (625, 10328), (1000, 6455), (1250, 5164), (1291, 5000), (2500, 2582)]